Question

我在Javascript中使用Spring Framework和angular JS。和AJAX请求成功。但我有一个问题是删除一些键和值。我的代码是

$.ajax({
    type: 'POST',       
    dataType: 'JSON',
    data:  JSON.stringify(search),
    contentType:"application/json; charset=UTF-8",
    url: '/yboard/select',
    error: function() {         
        alert("Loading failed!");
    },
    success: function(returnJSON) {     

        if (returnJSON.success) {           

            var result = JSON.stringify(returnJSON.items);
            console.log("no : " + result);      


        } else {
            alert("it's failed");                           
        }
    }
});

输出

no :     [{"boardID":"9b5199799c908e48051e2e131f2d35cc","no":204,"capital_stock":"","pno_stock":"3204000336","pname_stock":"HEATER","storage_code_stock":"C03","storage_name_stock":"A","price_indicator_stock":"M","unit_stock":"EA","stock_amount_stock":"12.00","tracking_no_stock":"015","standard_stock":"WATLOW: SFRE","client_code_stock":"1193","client_name_stock":"aaa","priority_stock":0},{"boardID":"6a11d21aa400ff6c94d7d7a21b762433","no":203,"capital_stock":"","pno_stock":"3204000328","pname_stock":"HEATER","storage_code_stock":"C03","storage_name_stock":"A","price_indicator_stock":"M","unit_stock":"EA","stock_amount_stock":"12.00","tracking_no_stock":"015","standard_stock":"SFRE","client_code_stock":"1153","client_name_stock":"bbb","priority_stock":0}]

我试图移除＆＃39; boardID＆＃39;和＆＃39; priority_stock＆＃39;这段代码的密钥。

delete returnJSON.items['boardID']
delete returnJSON.items['priority_stock']

或

delete result['boardID']
delete result['priority_stock']

但未能删除。问题是什么？

Answer 1

returnJSON对象的boardID属性是一个数组。您有两个项目，因此，如果您想从两者中删除priority_stock和for (var i = 0; i < returnJSON.items.length; i++) { delete returnJSON.items[i].boardID; delete returnJSON.items[i].priority_stock; }，则需要循环覆盖您的项目并逐个删除每个密钥，如下所示：

xib

Answer 2

删除所有项目的键

returnJSON.items.forEach(function(x){ delete x['boardID'] });
returnJSON.items.forEach(function(x){ delete x['priority_stock'] });

Answer 3

您可以将ES6 Array Map方法与Arrow函数表达式一起使用。

工作演示

let returnJSON= {
	"items": [{
		"boardID": "9b5199799c908e48051e2e131f2d35cc",
		"no": 204,
		"capital_stock": "",
		"pno_stock": "3204000336",
		"pname_stock": "HEATER",
		"storage_code_stock": "C03",
		"storage_name_stock": "A",
		"price_indicator_stock": "M",
		"unit_stock": "EA",
		"stock_amount_stock": "12.00",
		"tracking_no_stock": "015",
		"standard_stock": "WATLOW: SFRE",
		"client_code_stock": "1193",
		"client_name_stock": "aaa",
		"priority_stock": 0
	}, {
		"boardID": "6a11d21aa400ff6c94d7d7a21b762433",
		"no": 203,
		"capital_stock": "",
		"pno_stock": "3204000328",
		"pname_stock": "HEATER",
		"storage_code_stock": "C03",
		"storage_name_stock": "A",
		"price_indicator_stock": "M",
		"unit_stock": "EA",
		"stock_amount_stock": "12.00",
		"tracking_no_stock": "015",
		"standard_stock": "SFRE",
		"client_code_stock": "1153",
		"client_name_stock": "bbb",
		"priority_stock": 0
	}]
};

var res = returnJSON.items.map(obj => {
  (obj.hasOwnProperty('boardID')) ? delete obj.boardID : '';
  (obj.hasOwnProperty('priority_stock')) ? delete obj.priority_stock : '';
  return obj;
});

console.log(res);

如何删除JSON的键和值？

3 个答案: